Find the eccentricity and distance from the pole to the directrix of the conic. Then sketch and identify the graph. Use a graphing utility to confirm your results.
?
?
?
A. eccentricity: 
distance from pole to directrix: 
The graph is an ellipse.
?
B. eccentricity:
distance from pole to directrix: 
The graph is a hyperbola.
?
C. eccentricity:
distance from pole to directrix: 
The graph is a hyperbola.
?
D. eccentricity:
distance from pole to directrix: 
The graph is an ellipse.
?
E. eccentricity:
distance from pole to directrix: 
The graph is an ellipse.
?
Answer: D
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Use the quotient rule to simplify.
A. 
B. 
C. 
D. 